Joan decides to waive her ""three-month"" rule and sleep with Chris, but then receives a phone call from Sean. When she learns that Sean is back in town, she dumps Chris and expects to reunite with Sean. However, he stuns her by revealing that he is engaged. William expresses an interest in Lynn's co-worker, only to find that she is a lesbian with a crush on Lynn. Maya considers telling Darnell about her affair with Stan, but her friends talk her out of it. He soon discovers the truth in an unexpected way.